PREPARATION OF COMPOSITE RODS
    1.
    发明公开

    公开(公告)号:EP3374121A1

    公开(公告)日:2018-09-19

    申请号:EP16798257.8

    申请日:2016-11-09

    发明人: RUSSELL, Mark

    摘要: A method of producing a composite rod from a braze material and a sheet of material comprising cermet 12. The method comprises scoring a surface of the sheet to produce at least one line of localised stress 16A-D and subsequently causing the sheet to break along the line of localised stress to produce chunks of cermet. The cermet chunks are combined with the braze material to produce the composite rod. The cermet material is a composite of a metal and a ceramic and may comprise tungsten or titanium carbide in a cobalt matrix. The sheet of material may be a used cermet cutting tip 10 thus providing a method for recycling these materials. An external force may be applied to aid in the breaking of the material, this may be by the action of a mechanical crusher or press. Thermal stress may be created in the cermet sheet for example by use of a laser to assist with causing the sheet to break. Also provided is a method of hard facing a substrate by brazing the cermet chunks to the surface to be hardfaced.